ROS scavenges enzyme activities of GmbZIP152 transgenic Arabidopsis plants under salt, drought, and heavy metal stresses. (A) catalase (CAT), (B) superoxide dismutase (SOD), and (C) peroxidase (POD) enzyme activity was directly determined from fresh leaves. The relative expression level of (D) AtCAT1, (E) AtSOD, and (F) AtPOD was analyzed by qRT-PCR. The error bars indicate ± SD (n = 3 replicates). GmbZIP152 transgenic Arabidopsis plants (OE-GmbZIP152-2 and OE-GmbZIP152-5, two independent transgenic lines). Asterisks indicate significant differences for the indicated comparisons based on a student’s t-test (** p < 0.01; 0.01 < * p < 0.05).